We have just uploaded a 3.5.8 update for ArtRage Studio and Studio Pro. This update contains a reworking of tablet support to allow systems that have multiple registered tablet devices such as the new Sony Vaio to correctly report the pressure range for their input systems. If you have experienced problems on the Vaio with strokes appearing very small or light, this update should resolve that problem.

You can download the update directly from the Member Area following the instructions here: http://forums.artrage.com/showthread.php?41712