Every time I open a thread I get:

Run time error

Do u wish to debug

Error: line 19

'null' is null or not an object

It is really annoying when it pops up as I have to keep answering 'no'.
Does anyone know how to get rid of it?

Maybe you need to uninstall your java runtime libraries and reinstall them?

I thought he was talking about a javascript error in his browser and that the thread was a thread on the message board. More information, please.

Thats about all I know! Thats all that comes up so surely this is enough information to solve it no? Shall I press yes the next time it comes up and enter the debugging mode?

p.s. the thread IS on the message board

i have the same error just on line 20, no biggy, just js failing, ignore it unlease you feal like going true the code

Well it was incredibly annoying. I had ignored it for about 2 weeks but it was slowing things down big time having to press no for every thread. Amazingly it has dissappeared this morning! I think some webmaster saw this thread and decided to do something about it!!!

I've seen something similar ocassionally. Maybe it was just a snafu with your cacheing or something and a couple reboots or something has allowed the condition to be repaired.

Nah its back again now!!! Ah well........

in the popup, remove the tick where it says "always display this message when..."
the error should then be hidden in the statusbar.

edit:
eeh this might not work for you, are you using internet explore, does IE crash after the error.

I did kind of go into details in Site Feedback http://www.sciforums.com/showthread.php?t=34337&page=1&pp=20

Simply the problem seems to only occur in Internet Explorer and seems to be related to Internet Explorers Debugging process that you can turn on and off in options.
However it did seem that one person couldn't fix it from doing that which would potentially mean that an installation of Visual Studio .NET might have contributed to it.

The error itself isn't much of one, the "Javascript" code is actually corrupt, however Microsoft's Debugging program hasn't been programmed correct (Which is understandible since Visual Basic and Delphi were littered with similar errors)

I wish I could give you a better fix than telling you to adjust your settings but it's something quite minor.

More information on the actual reason for the debugging to exist:
http://support.microsoft.com/?kbid=224926
http://support.microsoft.com/default.aspx?scid=kb;en-us;822521&Product=ie600

Reg fix it:
http://www.winguides.com/registry/display.php/754/

Thanks for ur last link Stryder. I did that and fixed the registry settings for sctiprt debugger. It seems ok again.