Forms :: When Timer Expires Oracle

I have 2 10g forms that runs continuousely. They are display screens of scheduled open work, that refreshes as it scrolls. The scrolling is based on a timer, and when it reaches the last record, the forms requeries, and continues on scrollling.

My problem is every few days, both screens that are connected to different PC, stall and stop working we have to manually restart the PCs and the screens work again for few days and the problem happens again..The message we are getting:

end of communication channel, and at the status bar we get: when timer expired raised an undandled exception...Is there a way to handle that exception, can we when it happen, refresh the screen or exit and restart again?