First post, by Subjunctive
- Rank
- Newbie
I've got a Compaq ProLinea 486/25 SX upgraded with a "487" to a DX. When I found the machine, it had Windows 95, but I wanted to use it for pure DOS gaming, so I blew 95 away and replaced it with MS-DOS 6.22.
Whenever I enable the mouse driver in CONFIG.SYS, it says on boot:
"Driver not installed -- interrupt jumper missing"
I replaced the optical mouse with a ball mouse - no effect.
I tried a hacked MOUSE.SYS - no effect.
I copied over MOUSE.COM from the MS-DOS disks and it throws a screenful of garbage whenever I execute it. Doesn't matter if I use LH.
There's nothing in the documented jumper settings for this - only on 386 boards. I did make a jumper change when I installed the 487, but all this does is bypass the soldered 486SX. Shouldn't affect the mouse at all.
The mouse worked fine under Windows 95 when it was installed.
May I need to crack this machine open again after all? If I take the error message at face value, I've no idea what jumper I'd need to change...