I take the new version 5.1 of Shetch Drawer on Sharewareonsale. Before, I put off version 4.2 from my computer. At least Key version5.1 does’nt work after install new version. In fact, I hav’nt any more Sketch Drawer on my PC. Message tell me that only one on my computer and refused new key. What can I do? hope to read you soon.