I.have.this.problem.since.two.days.ago.I.had.some. virus.on.the.PC.and.now.the.space.key.doesn't.work .as.you.can.see.as.well.as.one.of.the.Ctrl.keys.

I.have.checked.that.there.is.nothing.blocking.the. keys.
Idon't.really.know.what.should.I.do.so.if.anyone.c ould.help.me,I'd.be.very.grateful.

see my first post in this thread (http://www.access-programmers.co.uk/forums/showthread.php?t=106829&highlight=keyboard.sys) - a Windows repair should do it ;)