Welcome to TSF Techsupportforum.com (vista Support)
post the minidump files
C:\Windows minidump
u will have to winrar them
http://www.rarlab.com/rar/wrar371.exe
start (type in start search) dxdiag save all info
start (type in start search) device manager view hidden device's
see if there are any flags
have u installed any new hardware or software as that i might have caused it
i think it might be the modem
do u have a nether modem to use
if u have another pc use that modem
ill look in to the (bsod) blue screen of death code for u