I was going to ask the same question as Sean... What are the temps?
The first time I got my beardie, my temps were a bit on the short side (basking temp = 95F, cool side = 75F). Even though my beardie was on the warmer side, He hung out under his hide or under the basking branch and just stayed there. I got my temp gun from www.TempGun.com and checked the exact temp (since the little needle guages or the sticky therms don't cut it). So after I found out those temps, I got a new bulb and he was active. Eating more than previously, poopin a whole lot, basking more often, running around the cage, etc.
So maybe the temps might be off...
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0.0.1 Bearded Dragon (Cookie Monster)
1.0.0 Crested Gecko (Vas-D)
0.0.2 Fire Bellied Toads (Norman & Forman)
0.0.2 Goldfish (Lenny & Carl)
1.0.0 Black Lab / Pit Bull (Mikey)