Good day, The above is what I got after a virus scan this morning. I do not have any other anti-virus installed along with Nod32 version 2, did not do any online scanning either. Deleted the swap file- Same error on new scan after reboot. Been getting random blue screens on bootup or after installing a program. Errors like : Last few days : OE fatal error at 0028 : ED 14 CAAF "" "" : ED 5B5 AAF " " : ED 609 AAF This morning : OE fatal error at 016F : BFF 86EBD from this morning " " : BFF 87188 As it occurs on boot ups only (or reboots) I changed power supplies. Tested the ram with memtest. Tested the PCU and graphics card with 3D Marks 2001 All ok but still random error messages. Set up :Win98SE, Abit BH7 last bios 15- P4 2.4 B- TI4200 with Zalman cooler - One stick of 512 Micron cas3 ram. 350W Hiper PSU- 2 Maxtor HD 40gig 7200 RPM. 1 Yamaha CD burner - 1 Asus CD rom drive- 1 Sony floppy reader- external ECI DSL modem- Using Adaware, Outpost firewall free, Regseeker, Spywareblaster, Firefox 1.6, Thunderbird. Anyone had similar hassle ? Anyone can suggest more testing software ? Thanks for any help.