Hi guys, In the past 24 hrs I've browsed through probably half the internet looking up stuff on BSODs, because I've had about 20 of them in the past days. The problem: Out of blue, w/o anything installed or updated, I started getting BSODs with the same errors time and again: BCCode : 77 BCP1 : C000003C BCP2 : C000003C BCP3 : 00000000 BCP4 : 022DA000 OSVer : 5_1_2600 SP : 2_0 Product : 256_1 BCCode : f4 BCP1 : 00000003 BCP2 : 86587460 BCP3 : 865875D4 BCP4 : 805C7496 OSVer : 5_1_2600 SP : 2_0 Product : 256_1 BCCode : f4 BCP1 : 00000003 BCP2 : 86693DA0 BCP3 : 86693F14 BCP4 : 805C7496 OSVer : 5_1_2600 SP : 2_0 Product : 256_1 etc Overall, the most mistakes I had were KERNEL_DATA_INPAGE_ERROR and KERNEL_STACK_INPAGE_ERROR Mostly BCCode f4 with periodic 77's. Done everything: defragged twice, ran chkdsk /r /f, did system restore to a point from 5 days ago, killed pagefile and then restored it back, ran memtest (not 5 times though, only once -- but it was clean), updated bios, updated drivers just in case... NOTHING WORKED!! I did the minidump unpacking and here's what it said (attached). Any advice would be greatly appreciated, though, frankly, I almost gave up and am totally out of any ideas whatsoever. Thanks!! Oh, and the system specs are: Product: ThinkPad T43 2668-WY7 Operating system: WinXP SP2 Centrino 760(2.0GHz), 1GB RAM, 60GB HD, 14.1in 1400x1050 LCD, 64MB ATI Radeon X300, CDRW/DVDRW, Intel 802.11bg wireless(MPCI), Bluetooth/Modem(CDC), 1Gb Ethernet(LOM), UltraNav, Secure Chip, Fingerprint reader, 6c Li-Ion batt, WinXP Pro --- Any ideas would be greatly appreciated.