<div dir="ltr"><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif">Hi,</p>

<p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif">I am trying to install SimNIBS 4.0 on Ubuntu 22. After installation
is completed, I close the terminal and open a new terminal.  In the new terminal, I type <span style="background-color:rgb(236,240,243);font-family:Consolas,Menlo,"DejaVu Sans Mono","Bitstream Vera Sans Mono",monospace;font-size:15.3px;white-space:nowrap">simnibs_gui</span><span style="font-size:11pt"> but unfortunately I only see a black screen. The error in terminal is </span></p><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif"><span style="background-color:transparent;font-family:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;font-size:11.9px"><font color="#000000">composeAndFlush: makeCurrent() failed.</font></span></p><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif"><span style="background-color:transparent;font-family:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;font-size:11.9px"><font color="#000000"><br></font></span></p><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif">I would be grateful for any possible solution.</p><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif"><br></p><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif">Best wishes,</p><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif">-Hassan</p><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif"><br></p><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif"><br></p><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif"><br></p><div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Hassan Yazdanian, PhD.<div>Department of Biomedical Engineering<br>Faculty of Electrical Engineering<br>K.N.Toosi University of Technology<br></div></div></div></div></div></div></div></div>