I installed root 4.00.08 in my pc running Windows XP professional. I have a problem with TBrowser. If I double-click on THist, a canvas opens showing the histograms, but if I do the same with a TGraph, a canvas opens, but without showing the graph, and it stays blank. I used root for windows also in other pc’s and I know this is not the correct behaviour. Could you help me to solve this problem?