Hi, welcome.
Locate the Oscillators section on the Virus' fascia. On the top left there are two knobs Oscillator 1 and 2 "Wave". Turn both knobs so that they are at 12 o'clock. They are now using 100% saw waves.
The manual is not used just as packing material, you know.
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PS > And another thing! Will the Ti|3 have user customisable/importable wavetables?
A ribbon-controller or XY-Pad might be nice, too, please! Thanks!