Microsoft jet b.403 big problem

hi, yesterday I have redownloaded asp runner 5.2.build 403, and started to have these problems:

on local host

on the server.
I have tried everything:

adding ISUR user, giving admin permissions to every cat and dog on the machine <img src='https://asprunner.com/forums/file.php?topicimage=1&fieldname=question&id=7908&image=1&table=forumtopics' class='bbc_emoticon' alt=':)' />

unchecking read only not only ion the Inetpub folder, containing folder, bud also to the database:

reinstalling b.401 SOLVED the problem.

but this is not the issue: I really want b.403 to work since it fixed minor other issues.

could you guys please see what is wrong?

Error Type:

Microsoft JET Database Engine (0x80004005)

The Microsoft Jet database engine stopped the process because you and another user are attempting to change the same data at the same time.

/mtoc/include/dbcommon.asp, line 128

what the line 128 basically says is dbconection=open
but OTHER myself NOONE is connected to this databse.

i even reinstalled IIS for that matter.