It's one of those weekends. Put on your walkin' shoes, borrow a car with cripple plates, go out and see shit. OPENINGSSATURDAYIgor Malijevsky, The Signs ( PDNB) 5-8pm This one is early, but worth checking out. Quinn, Falsetta, and Delsaux ( Conduit) 5:30 to 8:30pm Three very different shows in one, all pretty promising. Casey Williams, New Work ( Holly Johnson)5-8pm A study of the Houston Ship Channel that looks more like Rothko paintings than photographs of refineries and tankers. Breathing Space ( Artizen) 6-9pm Content ( F6) I just recently found out about F6, a DIY art gallery in Arlington that apparently knows how to throw a party. They also try to make all of their art affordable and don't take commissions from the artists- so for once, you may be able to buy something you like instead of watching University Park rich bitches shell out for something "eclectic" to hang in their family room. Photograph: Cedric Delsaux | 
