SKYPE Instant messaging problems..

Hi... I seem to have lost my previous registration details, so first off on the "new" acount..

I'm running Tiger and use Skype, but I'm having problems with the Instant messaging service. I get sent an instant message and I try to click in the box in order to reply but I just cannot get the cursor to activate the text box Basically, I just cannot click, write & reply... ?

Just to confuse matters, It DID work not long ago, but for some reason, it's not now..

I've since downloaded the most recent version, but no joy... A friend has suggested running APPLEJACK, but looking at the program, is scares me a little !

Is this a common Mac / Skype issue ?

 

I'll try it, but I still have a load of pre-paid phone credit which I don't wanty to lose !

 

I just trashed all Skype files, re-installed the software, and the problem is still there..

Any more ideas ?