Hello, Are you using FSL version 5.0.9? This was an issue that should be fixed in 5.0.9 onwards. Kind Regards Matthew > On 19 Jul 2016, at 15:53, Luetzkendorf, Ralf <[log in to unmask]> wrote: > > Hi, > > I am using Ubuntu (Latest Version) and FSL 5. > A year agoflirt worked fine and it dows now, but for some calculations I need the matrix. > Like I said, it worked fine a year ago. The only thing I maybe changed are some Ubuntu updates. > > The Matrix now looks like this: > > 0x1.ffffeap-1 -0x1.6abe1fbae8c3p-11 0x1.aa781d431b15cp-18 0x1.48b889e6c66e5p-4 > 0x1.2650ccp-10 0x1.ffcff8dfc1ffp-1 -0x1.03396272cdcep-9 0x1.9d3fce34abe38p-3 > 0x0p+0 0x0p+0 0x1.0053c8p+0 -0x1.1af9bd28dbp-3 > 0x0p+0 0x0p+0 0x0p+0 0x1p+0 > > What could be the mistake. The result looks fine, but the matrix doesnt and its not reusable by flirt throwing an exception. > > Do you use some internal math functions taht could be changed? > > I hope somebody can help, > > Ralf