Problems accessing menu bar

A big hello to everybody in flight sim land
I have had my FS2002 for a while now. After a few hard drive problems I re-installed FS2002. The problem is that when I right click my mouse the sub- menu appears & the hide menu bar box is activated. I cannot un-activate the hide menu box as it is not highlighted. Subsequently I cannot access the menu bar. This is indeed most frustrating. I guess this is probably a simple problem to overcome, but I am losing my hair at an alarming rate trying to solve this! If anybody knows how to fix this I would be VERY appreciative. A really big thank you in anticipation for your help.
