My mac: 2 x 2.26 Gh Quad-Core 6 GB intern 1066 Mhz DD3 ECC NVIDIA GeForce Lion 10.7.3 Did the update to Lion and now the mac seems to be slower. A lot of turning weels when working with iMovie, iWeb, Photoshop or Logic Pro. In the macshop a shop-stafmember told me my computer is to old [4 years] Is that true.... I have a reasonable high end setup. Anybody can advice me?