on one laptop it will not load (running windows 7),
This is most likely caused by McAfee. In the past McAfee has caused considerable issues with YTK. We've even tried contacting McAfee about how their software is false flagging YTK. They offered no help and apparently when McAfee decides something is harmful there is no reasoning with them. Also there is no workaround within McAfee software.
Make sure to run it as administrator. Right click the YTK desktop shortcut and click "Run as administrator".
on the other it loads and runs ok BUT the cam will not work when running YTK (running vista),
The webcam not working is an issue caused by a change Yahoo! made. Adam & Brock are aware of this and it will be addressed in the next update of YTK.
It may also be caused by YMSGv102. Try unchecking auto-reconnect on Yahoo! Messenger's login panel. Sign in and see if your cam works then.
I tryed running the laptop that YTK will not load on in safe mode and it works fine.
That's a definite indication that security software on your laptop is interfering with YTK.
i also made sure that YTK had full access in and out going in my firewall still did not work,
It's most likely not your firewall. But the culprit is probably McAfee. Short of removing McAfee there is probably nothing that will fix it.
The no cam issue has been going on for a long time
Refer to my above comments.
I would hate to think i have to buy Norton for all my computers just to use YTK
This may in fact be the only way. Since the contact with McAfee availed no help.
again AND the cam issue is really frustrating. tryed all the differant cam servers with no good results. Thanks for any help.
Refer to my above comments.