H.P. vectra vl PII, WIN95, I.E. 4.0, 32MB, 6 GIG all service packs. Removed M.S. dat files from history. No cookies, temp or temp internet files. Defraged and scandisked. Updated and ran virus scan. When using I.E. computer locks up have to hold on switch until it reboots or unplug. Will do same thing if trying to open history folder.