I have a two-week-old Windows 7 Toshiba laptop on which the clock time has lost exactly three hours on four or five occasions since I started using it. I've been experimenting with different personalization schemes off and on? Would the time on the clock change when I modify a theme or create a customized one?
One time I went into BIOS to change the time in an attempt to pin it down, but it has just lost three hours again. Might this be a serious problem?