the icons randomly change location, every time I turn on the PC they stay in random positions, generally the "trash" and "personal folder" icons do not change
This has been a known issue that has been reported a few times before. Take a look through this thread, hopefully some of the advice there can help.
Currently, my best guess is some sort of race condition between reading the monitor and the icons. The last post there shows a possible workaround that you might want to try (and report back if it works).