I ran into a problem tonight. After the engines were started and hydraulics switched on ect, the elevator trim handles started moving by themselves. They continued to move to the full extent of trim down which meant and sort of take off was impossible. I was able to manually reset the trim but as soon as I took my thumb off the trim switch, they started to move back on their own again!

This is something I used to see several versions of the 757 ago but had since disappeared.

Using one of the hat switches on my Saitek X45 for trim. Any suggestions?