Faulty RAM ??
Hi,
Your windows is crashed without pattern. Probably RAM is the culprit but I am not sure. Attach more minidumps here if you have. Reseat the ram to another memory slot. If it still crashes, run memtest to stress test the ram.
Mini020107-04.dmp BugCheck 10000050, {90ae4760, 0, bf80e850, 0}
Probably caused by : vsdatant.sys ( vsdatant+2d9be ) <-- ram or software error of ZoneAlarm
Mini020107-05.dmp BugCheck 10000050, {bc003740, 0, bf823aae, 1}
Probably caused by : win32k.sys ( win32k!PhkFirstValid+21 ) <-- ram problem
Mini020107-06.dmp BugCheck 1000007F, {8, 80042000, 0, 0} <-- Double fault with recursive memory error
Probably caused by : ntoskrnl.exe ( nt!KiTrap0E+cc )
Mini020407-01.dmp BugCheck 1000008E, {c0000005, bf9f8e4b, f2f177d4, 0}
Probably caused by : ati2dvag.dll ( ati2dvag+24e4b ) <-- may be ram or software error of ATI display card driver