Greetings, I have has some problems implementing FSL, I want to do probabilistic fiber tracking using Siemens 3T dicom volumes. From my dicom files (1+20 directions b=1000) was able to create Analyze 7.5, NIFTII, FSL NIFTII, and Analyze SPM files using MRIconvert. But when I started using the 64 bit CentOS FSL 4.1.2 for DTI eddy current correction GUI, I obtained the error message below and the error was similar no matter which of the files I used: ____________________________________________________ wrong # args: should be "ecc_update_files w filename" wrong # args: should be "ecc_update_files w filename" while executing "ecc_update_files .fdt /home/user/MRI_DATA/Maria_data_set/Data_Set_1/Adult Control PC/FileConv_AdultCntrl_DTI/NAMCF_NIFTII/77def287-922b-4c_29_ep2d_dif..." ("eval" body line 1) invoked from within "eval "$command $outputfile1" " (procedure "feat_file:invoke" line 29) invoked from within "feat_file:invoke .wdialog1 eddy(input) .fdt.ecc.input.var_filhis .fdt.ecc.input.var_selhis ::FileEntry {ecc_update_files .fdt}" invoked from within ".wdialog1.f4.but_ok invoke" ("uplevel" body line 1) invoked from within "uplevel #0 [list $w invoke]" (procedure "tk::ButtonUp" line 22) invoked from within "tk::ButtonUp .wdialog1.f4.but_ok" (command bound to event) __________________________________________ I would appreciate information about what am I suppose to do next. Also, if I just go ahead and do the BEDPOSTX estimation, I obtain the error: ___________________________________________ window name "prompt" already exists in parent window name "prompt" already exists in parent while executing "toplevel .prompt -borderwidth 5" (procedure "MxPause" line 4) invoked from within "MxPause "Errors: $junk"" (procedure "fdt_monitor" line 29) invoked from within "fdt_monitor $w "${FSLDIR}/bin/bedpostx $bedpost(directory) -n $bedpost(nfibres) -w $bedpost(weight) -b $bedpost(burnin)"" ("bedpostx" arm line 28) invoked from within "switch -- $probtrack(tool) { eddy_current { global eddy set errorStr "" if { $eddy(input) == "" } { set errorStr "You need to specify..." (procedure "fdt:apply" line 5) invoked from within "fdt:apply .fdt keep" invoked from within ".fdt.apply invoke" ("uplevel" body line 1) invoked from within "uplevel #0 [list $w invoke]" (procedure "tk::ButtonUp" line 22) invoked from within "tk::ButtonUp .fdt.apply" (command bound to event) _____________________________________ I am really confused about about the best way of advancing, and I would appreciate your assistance. If I could some how call you, that would be extremely nice, but email assistance would also be deeply appreciated. Best regards, Nicolás Lori. -- Nicolás Francisco Lori Visual Neuroscience Laboratory IBILI-Faculdade de Medicina Azinhaga de Santa Comba 3000-354 Coimbra Portugal Phone 00 351 239480248 Fax 00 351 239480217 email: [log in to unmask]