>gcc (Ubuntu 4.4.3-4ubuntu5) 4.4.3 >[...] >-- Version of viewer is 1.3.1 sadly Impru 1.3.x does'nt build with anything else than gcc/g++ 4.3 - all fixes for gcc/g++ 4.4 and 4.5 are in Impru 1.4.0 (so far experimental, soon beta). Armin