playing online,i get multiple-selection of squads (like if i was using SHIFT key)....

[Arex]

When i am playing online, i get multiple-selection of squads (like if i was using SHIFT key)....it happens on random games, and it is like if u was using SHIFT key all the complete skirmish...it is very disturbed bug =/ what u think that i could to be??

Thank You.