Vista - Can any one seriously solve this situation?

My computer sleeps well. Wake up is OK for few seconds then I get the
following msgs:
MS_WebCheckMonitor:explorer.exe-Application Error
"The instructions at 0x6e8b64ea referenced memory at 0x6e8b64ea. The
required data was not placed into memory because of an I/O error status of
0xc000000e.
Click OK to terminate"
I click OK and a Setup Error msg appears:
"Failed to load resources from resource file. Please check your setup"
I click OK and all icons vanish. I press power button and it resumes Windows
but only a black screen appears. I turn off again and it restarts OK.
Any imput on how I can fix this. Thanks and I would really appreciate your
help.
I have a Dell Dimension 8400
3 Gigs of Memory
Nvidia GeForce 7300 GS
Internet connection is Verizon FIOS and have a wireless router in the room
as well.