I have an AST A series laptop and I need to replace the CMOS battery in it.
I took it apart and removed the keyboard and hard drive and located the battery just ahead of the Hard drive tucked away in a very tight place.
The problem is I need to completely remove the top cover of the laptop but I don't know how to get at the two remaining screws under the LCD panel.I need to remove the LCD completely but I have no idea how.
Manuals and service information for this old laptop are impossible to find (so far) but the battery is available.
Any help is welcome.

I've never worked on an AST laptop but almost all IBM's and Toshiba's have one or two screws on the back of the laptop for each LCD post. Look where the LCD post slides into the top cover and check the back behind that spot. There may be a little sticky cover stuck over the screws that you can lift off (carefully) with a small slotted screwdriver.

My wife has an IBM Thinkpad that has the screws you mentioned but this AST is not quite the same.

I'm thinking that I may just perform some surgery and take a long pair of tweezers to push the old CMOS battery attachment out of the clip and slide the attachment from the new battery in and just leave the old battery on the mobo and stick the new one somewhere else.
:p

Any other ideas?