wow how much more assumption can you get?
well, try
a. buy a new board (xmodsinternational has these, or you can search xmods SKU RSU here on xmodsource to find the sku for ordering a stock board from radioshack...atomicmods is out cuz its so darn expensive) and replace liths with NiMH rechargeables(try energizer AAA's)
b. buy a stacked board from atomic
c. buy a 2x2-2x3 fet stack upgrade(make sure its for the evo) and solder it on(follow the instructions on the atomicmods site.
http://www.atomicmods.com/Categories...tallation.aspx
and make sure you don't bridge the whole backside with solder. try to be as neat as possible with this and only solder along each line of prongs.)
d. get a new board and a v2.2. v2.2 instructions are also on atomicmods.com and make sure you follow the wiring exactly