Just for info here are what the log files are saying
Executing GetBootAction(98, XXXXXXXX) smspxe 10/19/2011 8:51:04 AM 4396 (0x112C)
vLastPXEAdvertisementID is NULL smspxe 10/19/2011 8:51:04 AM 4396 (0x112C)
vLastPXEAdvertisementTime: 19/10/2011 11:36:50 smspxe 10/19/2011 8:51:04 AM 4396 (0x112C)
GetBootAction: MAC: SMBIOS: SMSID:XXXXXXXXXXXXXXXXXXXXXX LastAdv: smspxe 10/19/2011 8:51:04 AM 4396 (0x112C)
Advertisement results: OfferId:WIN20009 OfferTime:19/10/2011 08:15:00 PackageID:WIN00010 BootImageID:WIN00001 PackageVer: PackagePath:\\XXXXXXXX\SMSPXEIMAGES$\SMSPKG\WIN00001\ Mandatory:0 smspxe 10/19/2011 8:51:04 AM 4396 (0x112C)
ProcessDatabaseReply: Found optional advertisement(s): WIN20009 smspxe 10/19/2011 8:51:04 AM 4396 (0x112C)
[192.168.001.235:67] Recv From:[000.000.000.000:68] Len:548 4b0c70 smspxe 10/19/2011 8:51:27 AM 4196 (0x1064)
[192.168.001.235:67] Recv From:[000.000.000.000:68] Len:548 15dc5b0 smspxe 10/19/2011 8:51:31 AM 4196 (0x1064)
Ignoring req from [000.000.000.000:68] Dest Server:[192.168.001.001] smspxe 10/19/2011 8:51:31 AM 4196 (0x1064)
[192.168.001.235:4011] Recv From:[192.168.001.120:68] Len:548 15e3f70 smspxe 10/19/2011 8:51:31 AM 4196 (0x1064)
[192.168.001.235:4011] Recv From:[192.168.001.120:68] Len:303 17be970 smspxe 10/19/2011 8:51:32 AM 4196 (0x1064)
Getting boot action for unknown machine: item key: 98 smspxe 10/19/2011 8:51:32 AM 4396 (0x112C)
Executing GetBootAction(98, XXXXXXXXXX) smspxe 10/19/2011 8:51:32 AM 4396 (0x112C)
vLastPXEAdvertisementID is NULL smspxe 10/19/2011 8:51:32 AM 4396 (0x112C)
vLastPXEAdvertisementTime: 19/10/2011 11:36:50 smspxe 10/19/2011 8:51:32 AM 4396 (0x112C)
GetBootAction: MAC: SMBIOS: SMSID:XXXXXXXXXXXXXXXXXXXXXXXXX LastAdv: smspxe 10/19/2011 8:51:32 AM 4396 (0x112C)
Advertisement results: OfferId:WIN20009 OfferTime:19/10/2011 08:15:00 PackageID:WIN00010 BootImageID:WIN00001 PackageVer: PackagePath:\\XXXXXXXXX\SMSPXEIMAGES$\SMSPKG\WIN00001\ Mandatory:0 smspxe 10/19/2011 8:51:32 AM 4396 (0x112C)
ProcessDatabaseReply: Found optional advertisement(s): WIN20009 smspxe 10/19/2011 8:51:32 AM 4396 (0x112C)
[192.168.001.235:4011] Recv From:[192.168.001.235:9000] Len:274 10c34b0 smspxe 10/19/2011 8:52:17 AM 996 (0x03E4)
[192.168.001.235:67] Recv From:[000.000.000.000:68] Len:548 17bc730 smspxe 10/19/2011 8:52:55 AM 996 (0x03E4)
[192.168.001.235:67] Recv From:[000.000.000.000:68] Len:548 116dd70 smspxe 10/19/2011 8:52:59 AM 996 (0x03E4)
Ignoring req from [000.000.000.000:68] Dest Server:[192.168.001.001] smspxe 10/19/2011 8:52:59 AM 996 (0x03E4)
[192.168.001.235:4011] Recv From:[192.168.001.120:68] Len:548 15e8070 smspxe 10/19/2011 8:52:59 AM 996 (0x03E4)
[192.168.001.235:4011] Recv From:[192.168.001.120:68] Len:303 17bdab0 smspxe 10/19/2011 8:52:59 AM 2476 (0x09AC)
Getting boot action for unknown machine: item key: 98 smspxe 10/19/2011 8:52:59 AM 4396 (0x112C)
Executing GetBootAction(98, XXXXXXXXXXX) smspxe 10/19/2011 8:52:59 AM 4396 (0x112C)
vLastPXEAdvertisementID is NULL smspxe 10/19/2011 8:52:59 AM 4396 (0x112C)
vLastPXEAdvertisementTime: 19/10/2011 12:52:43 smspxe 10/19/2011 8:52:59 AM 4396 (0x112C)
GetBootAction: MAC: SMBIOS: SMSID:XXXXXXXXXXXXXXXXXX LastAdv: smspxe 10/19/2011 8:52:59 AM 4396 (0x112C)
Advertisement results: OfferId:WIN20009 OfferTime:19/10/2011 08:15:00 PackageID:WIN00010 BootImageID:WIN00001 PackageVer: PackagePath:\\XXXXXXXXXX\SMSPXEIMAGES$\SMSPKG\WIN00001\ Mandatory:0 smspxe 10/19/2011 8:52:59 AM 4396 (0x112C)
ProcessDatabaseReply: Found optional advertisement(s): WIN20009 smspxe 10/19/2011 8:52:59 AM 4396 (0x112C)