Logitech g300s onboard memory broken

[orze]

had this mouse for the longest and after i got my roccat tyon (looove this mouse xD)

i put this 1 in a box for allmost 6 months

about a week ago i gave it to my freind cus i got notin to do with it and we noticed he cant click or change dpi or anything while using onboard memory...

thing is the mouse seems to wna swtich to it at random times

so i wont mind using it only on the pc memory.....if it didnt switch back randomly mid game or somthing.

i also chacked and no macro seems to be switching it

any1 knows how to fix it

i allready tried other usb ports and reinstaled the driver...thx