I have following problem with QGIS 1.8. Lisboa (standalone installer, Win 7 Pro 64bit) - I import CSV - text in CP1250 separated with ";" and using "," as decimal separator.
I correctly set the separated text importer, get correct point layer which has all text entries displayed correctly. I save this as shapefile, set the CP1250 encoding but when I load this layer in QGIS (choose CP1250 again during SHP loading) but get point layer with damaged text entries.
I use this tool for a long time and did not have such problems. Did you have encounter such problems?