2009 17" Macbook freezes when plugged into Apple 24" LED Display

In the last few weeks I have noticed that when I plug my 17" UBMP into my 24" Apple display, the computer freezes and the 24" display remains dark.
The computer freeze shows no spinning ball, there is curser movement but nothing will work/open and I am forced to hold the power button until the machine restarts. When it does the display and machine work ok, unless I disconnect and re-connect the display.
This seems to happen 1 out of 5 times. I have a logitech wave cordless set with a usb stick/receiver in the display, however this does not seem to be the issue as it does not freeze sometimes with the stick connected.
anybody else see this issue?

Hi, Ray. Disconnect the Logitech USB dongle from the display, and try connecting and using the display with only your MBP's built-in mouse and trackpad in use. If you have no trouble with that simplified setup, try plugging the Logitech dongle directly into one of your MBP's USB ports, instead of into the display. Test again. Post back with results.
It seems very likely to me that the Logitech devices are somehow involved in the problem, even though it doesn't arise every time you connect the external display with the Logitech dongle connected to it.

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